Datenblatt-Suchmaschine für elektronische Bauteile |
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TS33003-M012QFNR Datenblatt(PDF) 1 Page - Semtech Corporation |
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TS33003-M012QFNR Datenblatt(HTML) 1 Page - Semtech Corporation |
1 / 16 page TS33001/2/3 Final Datasheet Rev 1.6 January 15, 2016 www.semtech.com 1 of 16 Semtech Proprietary & Confidential TS33001/2/3 High Efficiency Synchronous 1/2/3A DC/DC Buck Converter, 5Mhz TRIUNE PRODUCTS Features • Fixed Output option has automatic low power PFM mode for reduced quiescent current at light loads • 5MHz +/- 10% fixed switching frequency • Fixed output voltages: 0.8V, 0.9V, 1.2V, 1.5V, 1.8V, • 2.5V, and 3.3V with +/- 2% output tolerance • Input voltage range: 2.5V to 5.5V • Voltage mode PWM control with input voltage feed- • Forward compensation • Voltage supervisor for VOUT reported at the PG pin • Input supply under voltage lockout • Soft start for controlled startup with no overshoot • Full protection for over-current, over-temperature, • and VOUT overvoltage • Less than 200nA in shutdown mode • Multiple enable pins for flexible system sequencing • Low external component count • Junction operating temperature -40C to 125C • Packaged in a 16 pin QFN (3x3) Applications • Point of load • Systems with deep submicron ASICs/FPGAs • Set-top box • Communications equipment • Portable and handheld equipment Description The TS33001/2/3 (1/2/3A) are DC/DC synchronous switching regulators with fully integrated power switches, internal compensation, and full fault protection. The switching frequency of 5MHz enables the use of extremely small filter components, resulting in smaller board space and reduced BOM costs. When the input current is greater than approximately 50mA, the TS33001/2/3 utilizes PWM voltage mode feedback with input voltage feed-forward to provide a wide input voltage range without the need for external compensation. When the input current is less than 50mA, the device uses a PFM mode to provide increased efficiency at light loads. The cross over between PFM mode and PWM is automatic and has hysteresis to prevent oscillation between the modes. Additionally, the nLP mode pin can be used to force the device into PWM mode to reduce the output ripple, if needed. The TS33001/2/3 integrates a wide range of protection circuitry; including input supply under-voltage lockout, output under- voltage, output over-voltage, soft start, high side FET and low side FET current limits, and thermal shutdown. Typical Applications VCC VCC Fixed Output VSW 1µH VOUT 22uF VOUT Sense 10uF FB VCC or VOUT nLP nLP 10 kohm (optional) EN EN PG PG |
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